We are using a 4396841 Pur filter on our Whirlpool fridge. The filter lasts us about 2 weeks then saturates with sulfer due to our well water. Now the water coming from the faucets do not have a sulfer smell, only the wate coming from the fridge. My question is do we really need a filter? Will it hurt the fridge if we do not have a filter installed? We simply cannot afford to keep buying a filter every two weeks.

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The vibration is a tiny bit of "water hammer." Previous to your filter change, the water flow was restricted, and therefore incapable of causing water hammer. Now that you've changed the filter, the flow is large enough to cause a little water hammer when you shut off the flow. How to fix: shut off the flow SLOWLY. Water hammer is caused when the flow of water is shut down quickly. This is just as true with large flows (as in fire engine pump panels), as it is in itsy bitsyfiltered water lines & filter housings.

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The vibration is a tiny bit of "water hammer." Previous to your filter change, the water flow was restricted, and therefore incapable of causing water hammer. Now that you've changed the filter, the flow is large enough to cause a little water hammer when you shut off the flow. How to fix: shut off the flow SLOWLY. Water hammer is caused when the flow of water is shut down quickly. This is just as true with large flows (as in fire engine pump panels), as it is in itsy bitsyfiltered water lines & filter housings.

The model # is located inside refridgerator door on the upper right side panel.To reset the light you have to open fridge door and by the light there is a button you have to push in the button 5 times in 10 seconds to reset.Hope this helps if so give us a 4 thumbs up. THANKS

1.CAN YOU TELL IF WATER IS GOING TO THE FILTER, FIRST OF ALL.
2.IF WATER IS NOT GOING THREW THEN THERE IS A BLOCKAGE BEFOR THE FILTER
3. IF WATER IS GOING TO THE FILTER { CHECK TO IF THE FILTER IS IN CORRECTLY}
4.IS THE WATER GOING THREW THE FILTER, IF SO THERE IS A PROBLEM WITH THE KINE FROM THE FILTER TO THE LEVER TOR THE WATER TO COME OUT.
5. ALSO CHECK FOR LEAKS GOOD LUCK

The original part number is 4396841; cartridge T2RFWG2. The filter fits into the grill at the bottom of the refrigerator (nearly centered on the left hand side of the grill). There is a cap covering the filter.

Sometimes filters have issues like this even being new , it is located at the bottom kickplate [round] , pick up a new filter -part number 4396841 - install the filter , dump remaining ice in bin out , purge the water through the new filter through water in door for a few minutes and you should be good.
Phil

We have the same problem. Started 2 weeks after purchase. (6 months ago). Tech. replaced fliter, worked for another 2 weeks, then water & ice awful again. Tried to live w/ it - ordered another filter a week ago. Replaced & within 24 hrs. problem was back. Called Whirlpool. Said tech who came to my househad written in his report that tap water & fridge water tasted the same. A lie - he agreed w/ me that the water from fridge was bad, & replaced filter which had a musty odor. Whirlpool basically called me a liar but agreed to send another tech to check it out. I will never buy another Whirlpool product & plan to tak this problem as far as I need to in order to get satisfaction. This is ridiculous!